vulnerability
Alpine Linux: CVE-2021-40153: Path Traversal
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:N/I:P/A:P) | Aug 27, 2021 | Mar 26, 2024 | Dec 5, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:P)
Published
Aug 27, 2021
Added
Mar 26, 2024
Modified
Dec 5, 2025
Description
squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination.
Solution
alpine-linux-upgrade-squashfs-tools
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